To be honest I am not sure what to do yet so we offer as doing all of these. Have had calls with 3 potential clients, all looking into our proposals one was in

To be honest I am not sure what to do yet so we offer as doing all of these. Have had calls with 3 potential clients, all looking into our proposals one was in marketing and the others in development, looking to go into a better niche after reading these amazing comments. Should case studies be on previous work or can I do some for companies of choice?